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v3.22.4

Summary of Status of Equity Incentive Plan (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 shares $ / shares | Dec. 31, 2022 shares $ / shares | Dec. 31, 2021 shares $ / shares | Dec. 31, 2021 shares $ / shares | Dec. 31, 2020 shares
Canadian Share Options [Member] |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |
Options Outstanding, Beginning balance | shares | 115,605 | 115,605 | 148,665 | 148,665 |
Options Outstanding, Exercised | shares | (26,705) | (26,705) |  |  |
Options Outstanding, Forfeited | shares | (65,845) | (65,845) | (33,060) | (33,060) |
Options Outstanding, Ending balance | shares | 23,055 | 23,055 | 115,605 | 115,605 |
Weighted Average Exercise Price, Beginning balance | $ 123.35 |  | $ 138.86 |  |
Weighted Average Exercise Price, Exercised | 88.62 |  |  |  |
Weighted Average Exercise Price, Forfeitures | 141.05 |  | 193.1 |  |
Weighted Average Exercise Price, Ending balance | $ 113.01 |  | $ 123.35 |  |
Options exercisable | shares | 23,055 | 23,055 | 115,605 | 115,605 | 141,156
Canadian Share Options [Member] | Top of Range [Member] |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |
Range of Exercise Prices, Beginning balance | $ 146.4 |  | $ 286.2 |  |
Range of Exercise Prices, Exercised | 89.2 |  |  |  |
Range of Exercise Prices, Forfeitures | 286.2 |  | 286.2 |  |
Range of Exercise Prices, Ending balance | 145.97 |  | 146.4 |  |
Canadian Share Options [Member] | Bottom Of Range [Member] |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |
Range of Exercise Prices, Beginning balance | 87 |  | 87 |  |
Range of Exercise Prices, Exercised | 87 |  |  |  |
Range of Exercise Prices, Forfeitures | 89.2 |  | 89.2 |  |
Range of Exercise Prices, Ending balance | $ 87 |  | $ 87 |  |
U.S. Share Options [Member] |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |
Options Outstanding, Beginning balance | shares | 267,843 | 267,843 | 283,793 | 283,793 |
Options Outstanding, Granted | shares | 0 | 0 | 0 | 0 |
Options Outstanding, Exercised | shares | (93,890) | (93,890) |  |  |
Options Outstanding, Forfeited | shares | (32,205) | (32,205) | (15,950) | (15,950) |
Options Outstanding, Ending balance | shares | 141,748 | 141,748 | 267,843 | 267,843 |
Weighted Average Exercise Price, Beginning balance |  | $ 80.43 |  | $ 86.23 |
Weighted Average Exercise Price, Exercised |  | 61.64 |  |  |
Weighted Average Exercise Price, Forfeitures |  | 115.8 |  | 183.6 |
Weighted Average Exercise Price, Ending balance |  | $ 84.84 |  | $ 80.43 |
Options exercisable | shares | 141,748 | 141,748 | 257,854 | 257,854 | 239,521
U.S. Share Options [Member] | Top of Range [Member] |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |
Range of Exercise Prices, Beginning balance |  | $ 115.8 |  | $ 183.6 |
Range of Exercise Prices, Exercised |  | 68.8 |  |  |
Range of Exercise Prices, Forfeitures |  | 115.8 |  | 183.6 |
Range of Exercise Prices, Ending balance |  | 111.47 |  | 115.8 |
U.S. Share Options [Member] | Bottom Of Range [Member] |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |
Range of Exercise Prices, Beginning balance |  | 51.2 |  | 51.2 |
Range of Exercise Prices, Exercised |  | 51.2 |  |  |
Range of Exercise Prices, Forfeitures |  | 115.8 |  | 183.6 |
Range of Exercise Prices, Ending balance |  | $ 51.2 |  | $ 51.2 |

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